nvent SPECTRACOOL N431246G228 Instruction Manual

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SPECTRACOOL

Air Conditioner

n43 Model

INSTRUCTION MANUAL

Rev. P

89074138

P/N 89068451

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Summary of Contents for nvent SPECTRACOOL N431246G228

Page 2 Basic Air Conditioning Trouble Shooting Check List - Thermostat Version ......................34 Symptoms and Possible Causes - Thermostat Version ............................35 Basic Air Conditioning Trouble Shooting Check List - Remote Access Control Version ..................36 Symptoms and Possible Causes - Remote Access Control Version ........................37 © 2019 nVent 89074138 - 2 -...
Page 3 Damage evident upon receipt should be noted on the freight bill. Damage should be brought to the attention of the delivering carrier -- NOT to nVent Equipment Protection -- within 15 days of delivery. Save the carton and packing material and request an inspection. Then file a claim with the delivering carrier.
Page 4 The contactor on the 1 phase 115V model uses a 115 V coil. The 3 phase model uses a 230 V coil. The contactor on the 1-phase 230V model uses a 230V coil (controller option only). © 2019 nVent 89074138...
Page 5 The unit will remain electrified when the door switch is operated with the evaporator fan continuing to operate, and potentially, if temperatures are low enough, the heater may continue to operate on outdoor models. © 2019 nVent 89074138 - 5 -...
Page 6 SCHEMATICS AND WIRING DIAGRAMS FOR THERMOSTAT CONTROL N43 115V 1-PHASE GENERIC SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) 05-2001-193 N43 230V 1-PHASE GENERIC SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) 05-2001-192 © 2019 nVent 89074138 - 6 -...
Page 8 SWITCHES RED5 CAP. START RELAY ENCLOSURE WHT25 IMPELLER RED R WHT61 CAP. YEL4 ENC. AMB. AMBIENT IMPELLER YEL S RED R AMBIENT IMPELLER BLK20 BLK12 COMPRESSOR COMP HTR OR C/E 89069906 (OPTIONAL) (OPTIONAL) © 2019 nVent 89074138 - 8 -...
Page 9 START SWITCHES RED5 CAP. START RELAY ENCLOSURE IMPELLER RED R WHT61 CAP. YEL4 ENC. AMB. AMBIENT IMPELLER YEL S RED R AMBIENT IMPELLER BLK20 BLK12 COMPRESSOR COMP HTR 89073638 OR C/E (OPTIONAL) (OPTIONAL) © 2019 nVent 89074138 - 9 -...
Page 12 24 VAC terminal strip by noting the locations on the correct wiring diagram. 8. Set thermostat for required cabinet temperature. Refer to Sequence of Operation on page 9 for thermostat adjustment and operation. SURFACE MOUNT Figure 1 Cutout Dimensions © 2019 nVent 89074138 - 12 -...
Page 13 Evaporator Fan On Start-up Request AMBER Not Used Not Used AMBER Not Used Not Used AMBER Heater Active Not Used Alarm Active Not Used AMBER Controller Active Not Used AMBER Not Used Not Used © 2019 nVent 89074138 - 13 -...
Page 14 The Remote Access Control has a normally open dry contact alarm output with a resistive load rating of 250 VAC at 3 amps. Two yellow 18 AWG wires located at the back of the air conditioner provide a connection to this output. © 2019 nVent 89074138 - 14 -...
Page 15 Read and change the state of IP addressing (static or dynamic) • Read current Alarm Status SOFTWARE AND CONFIGURATION FILE DOWNLOADS The PC Interface Tool, MIB file, EDS file, EtherNet_IP Object file and Coil_Register file can be downloaded from www.hoffmanonline.com. © 2019 nVent 89074138 - 15 -...
Page 16 To change to statically assigning IP Address Mode • Uncheck Use DHCP Server checkbox • Enter Device IP Address, Subnet Mask, Gateway IP Address, Trap IP Address and Community • Click Load Ethernet Info button © 2019 nVent 89074138 - 16 -...
Page 17 Enter Device IP Address, Subnet Mask, Gateway IP Address, Trap IP Address and Community • Click Load Ethernet Info button ALARM LOG ACCESSIBLE WITH SNMP • Using custom software with the provided MIB file gives the ability to view a log of the last 25 alarms © 2019 nVent 89074138 - 17 -...
Page 18 ID GND Y (na) U2 INPUTS GND (na) T1, EVAP IN THERMISTOR T2, EVAP OUT THERMISTOR T1, T2 GND CONTROLLER POWER BLK40 CONTROLLER POWER WHT41 POWER GROUND BLACK U3 DATA DIRECTION GREEN DATA WHITE © 2019 nVent 89074138 - 18 -...
Page 19 SCHEMATIC AND WIRING DIAGRAM FOR REMOTE ACCESS CONTROL N43 1-PHASE GENERIC SCHEMATIC (ACTUAL UNIT OPTIONS MAY VARY) © 2019 nVent 89074138 - 19 -...
Page 20 N43 460V 3-PHASE GENERIC SCHEMATIC FOR REMOTE ACCESS CONTROL (ACTUAL UNIT OPTIONS MAY VARY) © 2019 nVent 89074138 - 20 -...
Page 21 N43 1-PHASE GENERIC WIRE DIAGRAM FOR REMOTE ACCESS CONTROL (ACTUAL UNIT OPTIONS MAY VARY) © 2019 nVent 89074138 - 21 -...
Page 22 N43 460V 3-PHASE GENERIC WIRE DIAGRAM FOR REMOTE ACCESS CONTROL (ACTUAL UNIT OPTIONS MAY VARY) © 2019 nVent 89074138 - 22 -...
Page 23 DIMENSIONAL DRAWINGS N43 GENERIC MODEL DRAWING WITH REMOTE ACCESS CONTROL 89082929 © 2019 nVent 89074138 - 23 -...
Page 24 Electrical circuit should be fused with slow blow or HACR circuit breaker. 6. Set controller setpoints for required cabinet temperature. Refer to DISPLAYING AND CHANGING PROGRAM VARIABLES on page 14 for setpoint adjustment and operation. Surface Mount Figure 2 Cut-out Drawing © 2019 nVent 89074138 - 24 -...
Page 25 1. Flush the filter with warm water from the exhaust side to the intake side. DO NOT USE CAUSTICS. 2. After flushing, allow filter to drain. Placing it with a corner down will assure complete drainage. © 2019 nVent 89074138...
Page 26 CAUTION Operation of the air conditioner in areas containing airborne caustics or chemicals can rapidly deteriorate filters, condenser coils, blowers and motors, etc. Contact nVent Equipment Protection for special recommendations. REFRIGERANT LOSS Each air conditioner is thoroughly tested prior to leaving the factory to insure against refrigeration leaks. Shipping damage or microscopic leaks not found with sensitive electronic refrigerant leak detection equipment during manufacture may require repair or recharging of the system.
Page 27 Evaporator Unit Amps(A) In(°F) Delta(°F) Delta(°F) 65-80 8.5-10.9 17-23 27-36 N431216GXXX 80-100 9.9-13.4 17-28 30-43 65-80 4.4-6.4 20-32 22-26 N431226GXXX 80-100 5.4-7.6 26-36 20-30 65-80 2.4-3.2 17-29 29-40 N431246GXXX 80-100 2.6-3.4 23-33 32-40 © 2019 nVent 89074138 - 27 -...
Page 28 +/- 10% of rated Cooling Amps at Max Conditions 16.6/22.0 8.7/9.1 3.4/3.8 Heating Amps 12.2 Compressor RLA / LRA 9.6/57.0 4.9/38.0 2.1/16.0 Evaporator Fan RLA .78/.93 .39/.53 .39/.53 Condenser Fan RLA .78/.93 .39/.53 .39/.53 © 2019 nVent 89074138 - 28 -...
Page 29 Thermostat, SPDT, 55-100F 10-1061-16 10-1061-16 10-1061-16 Transformer, Input Power 10-1006-128 Controller, Basic 89075653 Thermistor 89075654 Bridge Rectifier 89087424 Controller Wires with pins (24) 89083091 Communication Board 89082033 Communication Cable 89080313 315 mA Fuse 89085115 © 2019 nVent 89074138 - 29 -...
Page 30 N43-1216-GXXX PRESSURE TABLES N431216GXXX 50hz L=SUCTION (± 5PSIG); H=HEAD (-10/+20PSIG) ENCLOSURE TEMPERATURE (°F) °F N431216GXXX 60hz L=SUCTION (± 5PSIG); H=HEAD (-10/+20PSIG) ENCLOSURE TEMPERATURE (°F) °F © 2019 nVent 89074138 - 30 -...
Page 31 N43-1226-GXXX PRESSURE TABLES N431226GXXX 50hz L=SUCTION (± 5PSIG); H=HEAD (-10/+20PSIG) ENCLOSURE TEMPERATURE (°F) °F N431226GXXX 60hz L=SUCTION (± 5PSIG); H=HEAD (-10/+20PSIG) ENCLOSURE TEMPERATURE (°F) °F © 2019 nVent 89074138 - 31 -...
Page 32 N43-1246-GXXX PRESSURE TABLES N431246GXXX 50hz L=SUCTION (± 5PSIG); H=HEAD (-10/+20PSIG) ENCLOSURE TEMPERATURE (°F) °F N431246GXXX 60hz L=SUCTION (± 5PSIG); H=HEAD (-10/+20PSIG) ENCLOSURE TEMPERATURE (°F) © 2019 nVent 89074138 - 32 -...
Page 33 1077 Gramm 1162 Gramm Opłata Fabryczna 1021 Gramów 1077 Gramów 1162 Gramów Equivalent 1.46 Tons 1.54 Tons 1.66 Tons Equivalent 1,46 Tonnen 1,54 Tonnen 1,66 Tonnen Ekwilalent 1,46 Tony 1,54 Tony 1,66 Tony © 2019 nVent 89074138 - 33 -...
Page 34 (replace upper access panel for safety). This will activate the switch in the thermostat. Turn the power on and if all impellers and the compressor come on, the thermostat needs to be replaced. © 2019 nVent 89074138 - 34 -...
Page 35 Unit blows breakers Short in system Drain plugged Drain tube kinked Getting water in enclosure Enclosure not sealed (allowing humidity in) Mounting gasket damaged For additional technical support, contact nVent Equipment Protection at 800-896-2665. © 2019 nVent 89074138 - 35 -...
Page 36 6. The compressor and the condenser (Ambient or “HOT” air) impeller(s) should turn on. Is there adequate airflow? YES, proceed to step 7. NO, possible problem: » Open motor winding(s) » Stuck impeller(s) Repair or Replace » Obstructed wheel(s) defective part » Defective motor capacitor(s) © 2019 nVent 89074138 - 36 -...
Page 37 Unit blows breakers Short in system Drain plugged Drain tube kinked Getting water in enclosure Enclosure not sealed (allowing humidity in) Mounting gasket damaged For additional technical support, contact nVent Equipment Protection at 800-896-2665. © 2019 nVent 89074138 - 37 -...

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Spectracool n43